This species of the Scolecenchelys gymnota species group is distinguished by the following set of characters: head 9.9-12 % TL; tail 54-58 % TL; body depth 2.0-4.0 % TL; snout 15-20 % HL; horizontal distance between dorsal-fin origin and a vertical through mid-anus 3.5-46 % HL; blunt snout; rictus of mouth anterior to or just below a vertical through posterior margin of eye; upper-jaw teeth arranged biserially and vomer only a single row or rarely biserial anteriorly; predorsal vertebrae 54-63, preanal 54-58, total 135-146; MVF 59-56-139 (Ref. 104540).

Description: Characterized by pale greyish color, sometimes with reddish fins; no pectoral fins; dorsal and anal fins confluent with caudal fin; soft and flexible tail tip; small and sharp teeth (Ref. 90102).